<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
	</body>
	<script type="text/javascript">
		function join() {
			var arr = ['a','b','c','d','e'];
			document.writeln(arr.join('/'))
		}
		join()

	</script>
</html>
